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Ch 48: Decimals

About This Chapter

If you're preparing to take the GED exam, use this chapter's video lessons, transcripts and self-assessment quizzes to review tips for working with decimals. Instructors cover steps for estimating and ordering decimals as well as maintaining place value when performing arithmetic functions.

Decimals - Chapter Summary

Get ready for GED exam's mathematical reasoning questions with the lessons included in this chapter. Watch the videos to review tips for reading, writing and rounding decimals and learn how to do the following:

  • Add and subtract decimals
  • Estimate decimals
  • Compare and order decimals
  • Multiply and divide decimals

Our experienced instructors deliver lesson content in the form of short, entertaining videos and written transcripts. Both formats include plenty of illustrations and sample word problems to help you practice determining decimal place value when working with these types of numbers. There are also multiple-choice quizzes you can take as many times as you need to hone your skills and assess your readiness for the exam.

Decimals - Chapter Objectives

The GED test is a high school equivalency exam designed to ensure adult learners have the academic skills needed to succeed in a postsecondary education program or as part of the job force. Lessons included in this chapter are designed to help you prepare for the GED's mathematical reasoning section. This part of the test lasts 90 minutes and consists of two parts, the first of which includes five questions that must be answered without the aid of a calculator.

About half of all math test questions will assess your quantitative problem-solving skills. Use the videos, lesson transcripts and self-assessment quizzes included here to practice performing basic mathematical operations with decimals and ace these types of multiple-choice, hot spot, matching and fill-in-the-blank questions on the exam.

7 Lessons in Chapter 48: Decimals
Test your knowledge with a 30-question chapter practice test
What is a Decimal Place Value?

1. What is a Decimal Place Value?

In this video lesson, you will see how a decimal, a simple dot, can change the place value of all the digits in a number. You will also learn how to read decimals using place values.

Comparing and Ordering Decimals

2. Comparing and Ordering Decimals

In this video lesson, you'll find out how you can look at any two decimals and immediately tell which is greater than the other. You'll also learn how to quickly sort decimals from least to greatest or vice versa.

How Zeros Are Used in Decimals

3. How Zeros Are Used in Decimals

Zero is a very small but also very important digit. Watch this lesson and learn how it is used in decimal numbers to keep place and for accuracy purposes.

How to Round Decimals

4. How to Round Decimals

After watching this video lesson, you will be able to look at any decimal number and round it any which way you want. Learn the tipping point that determines whether to go up to the next number or not.

Adding and Subtracting Decimals: Examples & Word Problems

5. Adding and Subtracting Decimals: Examples & Word Problems

In math, we sometimes have to deal with decimal numbers instead of our nice whole numbers. Watch this video lesson to learn the one thing that you have to take into consideration when adding and subtracting decimals.

Multiplying and Dividing Decimals: Examples & Word Problems

6. Multiplying and Dividing Decimals: Examples & Word Problems

Watch this video lesson to learn what you need to do to get a correct answer when multiplying and dividing decimals. Learn the easy tricks to figuring out where the decimal point goes.

How to Estimate with Decimals to Solve Math Problems

7. How to Estimate with Decimals to Solve Math Problems

Watch this video lesson to learn how you can estimate problems with decimals in them so you can get a quick answer when you need it - for example, when you are at the gas station and you need to know how much gas you can afford.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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